Influence of a non-free field subsurface seismic history on the liquefaction resistance of sandy soils
作者机构：College of Civil EngineeringHebei University of EngineeringHandan 056038China Institute of Geotechnical EngineeringTianjin UniversityTianjin 300072China
出 版 物：《Earthquake Engineering and Engineering Vibration》 (地震工程与工程振动(英文刊))
年 卷 期：2025年第24卷第1期
页 面：53-68页
核心收录：
学科分类：070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学]
基 金：National Natural Science Foundation of China under Grant No.U21A20164 National Science Fund for Distinguished Young Scholars of China under Grant No.51825904
主 题：non-free site seismic history liquefaction resistance excess pore pressure shaking table test
摘 要：Seismic-induced liquefaction of sandy soils can fail foundations in the vicinity of *** investigate the effect of a non-free field subsurface seismic history on the ability of saturated sandy soils to resist liquefaction,four shaking events with different accelerations were input to the sandy soils in the *** results of the study revealed that:(1)Shallow soils that are not free-field undergo acceleration amplification effects after being subjected to seismic loading.(2)Building overburden pressure reduces the sensitivity of the shallow soils directly below in small and moderate earthquakes,which are more prone to rearranging and forming unstable structures under strong seismic *** excess pore pressure response on the load side resembles that of a free site,with the depth range of the liquefaction strength of soils affected by the seismic history,increasing progressively as input seismic intensity increases.(3)After experiencing earthquakes of different intensities,the excess pore pressure directly below the building overburden pressure at 0.1 m and 0.2 m is greater than that at the *** the same time,the side of the building structure is more prone to liquefaction than the soil directly below it.
维普期刊数据库
同方期刊数据库
